Toyota Venza: Headlight Leveling ECU Power Source Circuit
DESCRIPTION
This circuit detects the state of the ignition switch, and sends it to the headlight leveling ECU assembly.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following inspection procedure.
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (BATTERY - HEADLIGHT LEVELING ECU ASSEMBLY) |
|
(a) Disconnect the A40 headlight leveling ECU assembly connector. |
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Switch Condition |
Specified Condition |
|---|---|---|
|
A40-1 (IG) - Body ground |
Ignition switch ON |
11 to 14 V |
|
A40-1 (IG) - Body ground |
Ignition switch off |
Below 1 V |
|
*1 |
Front view of wire harness connector (to Headlight Leveling ECU assembly) |
| NG | .gif) |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
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|
2. |
CHECK HARNESS AND CONNECTOR (HEADLIGHT LEVELING ECU ASSEMBLY - BODY GROUND) |
|
(a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| OK | |
PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE |
| NG | |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
Headlight Beam Level Control Actuator Circuit
DESCRIPTION
The headlight leveling ECU assembly actuates the headlight leveling motor according
to vehicle conditions.
WIRING DIAGRAM
PROCEDURE
1.
READ VALUE USING TECHS ...
Indicator Circuit
DESCRIPTION
The headlight beam level control system indicator light in the combination meter
assembly comes on for approximately 3 seconds when the ignition switch is turned
to ON. The indicator ...
Other materials about Toyota Venza:
System Diagram
SYSTEM DIAGRAM
Communication Table
Sender
Receiver
Signal
Line
Main body ECU (Driver side junction block assembly)
Sliding roof ECU (Sliding roof drive gear sub-assembly)
Key ...
Removal
REMOVAL
PROCEDURE
1. REMOVE REAR WHEELS
2. REMOVE CENTER EXHAUST PIPE ASSEMBLY
(a) Remove the center exhaust pipe assembly.
HINT:
Refer to the instructions for Removal of the exhaust pipe (See page
for 2GR-FE,
for 1AR-FE).
3. REMOVE PROPELLER WITH ...
Precaution
PRECAUTION
NOTICE:
When disconnecting the cable from the negative (-) battery terminal, initialize
the following systems after the cable is reconnected.
System Name
See Procedure
Back Door Closer System
...
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